81-68-5 Usage
Preparation
1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid?and copper sulfate, potassium carbonate, 4-Methylbenzenesulfonamide?condensation, washed with methanol, methoxy potassium hydroxide and filtered.
Flammability and Explosibility
Nonflammable
Properties and Applications
Blue light pink. Peach_pink powder. Used for polyester and their blended fabric dyeing, also can be used for three vinegar and polyamide fiber dyeing, hue for blue-ray peach.
Standard
Ironing Fastness
Light Fastness
Persperation Fastness
Washing Fastness
Fading
Stain
Fading
Stain
Fading
Stain
AATCC
5
4-5
7
5
5
5
5
ISO
4-5
4-5
7
4-5
5
4-5
4-5
Standard
Ironing Fastness
Fading
Stain
AATCC
5
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 81-68-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81-68:
(4*8)+(3*1)+(2*6)+(1*8)=55
55 % 10 = 5
So 81-68-5 is a valid CAS Registry Number.
InChI:InChI=1/C22H18N2O5S/c1-12-7-9-13(10-8-12)30(27,28)24-16-11-17(29-2)20(23)19-18(16)21(25)14-5-3-4-6-15(14)22(19)26/h3-11,24H,23H2,1-2H3
81-68-5Relevant articles and documents
Composition of mixed benzensulfonamido anthraquinone dyes and linear polyester material dyed therewith
-
, (2008/06/13)
A composition comprising two or more benzensulfonamido anthraquinone dyes, selected from those of the formula: STR1 wherein R is methyl, ethyl, hydroxyethyl, β-methoxyethyl or β-ethoxyethyl, R1 is hydrogen or methyl and R2 is hydrogen, methyl or methoxy, provided that in at least one of the selected dyes, R1 and R2 are both hydrogen. The mixture of dyes gives improved dye strength and brightness of shade and is useful for dyeing linear polyester material, particularly textile material, in shades of red, with excellent leveling and fastness properties.
